Germany: solar plant site data

Solar power plant in Düsseldorf, Germany: yield, tilt angle and row spacing

Düsseldorf: 1,034 kWh per kWp a year at the optimal tilt of 39°, 3° east of south (PVGIS). 1.0% below the median of the main cities of Germany (1,045). #111 of 193 main cities of Germany by yield. For comparison, Kyiv: 1,114 kWh/kWp — 7.1% less here.

Düsseldorf is in North Rhine-Westphalia. Population 618,685 (GeoNames). 42 m above sea level. 34 km away: Cologne, the nearest bigger city, 1,045 kWh/kWp — 1.0% less here. 13.95 m between rows, pitch 17.67 m, GCR 0.27 (latitude 51.2°).

Yield of 1 kWp
1,034kWh/year
Tilt
39°3° east of south
10 kW
10,344kWh/year
Row pitch
17.67m · GCR 0.27
Rank in the country
111of 193 cities

Ground frame designer

A ground frame for a solar plant: Düsseldorf

Latitude 51.2°: the tilt and the row pitch follow it. Enter the snow and wind for Germany in the designer, by the national annex to the Eurocode.

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  • Snow and wind check
  • Drawings and estimate

Yield by month

38Jan56Feb93Mar117Apr125May124Jun122Jul114Aug99Sep73Oct44Nov31Dec

May: 125 kWh/kWp, December: 31 — 4.0 times less.

January: 38 against the median of 35 for the main cities of Germany, 8.6% more.

Düsseldorf: plants, kWh
kWpA yearMayDecember
55,172625155
1010,3441,250310
1515,5161,875465

Fixed tilt facing south

What a table yields at another tilt than the optimal 39° — for roofs and frames with a standard slope.

Düsseldorf: yield at a fixed tilt, kWh/kWp
TiltA yearAgainst the optimum
39° (optimum)1,034—
15°966−6.6%
30°1,024−1.0%
45°1,031−0.4%
90°742−28.3%

Snow and wind loads

Snow and wind loads for a site in Germany follow DIN EN 1991-1-3/NA (snow load zone, Schneelastzone) and DIN EN 1991-1-4/NA (wind zone, Windzone). Solispec computes loads by the Ukrainian DBN V.1.2-2 only, so this page shows no snow or wind values for Germany: enter the characteristic values from these documents in the designer’s «Own snow S0» and «Own wind W0» fields.

The frame calculation for such a site is preliminary: before installation it must be checked by an engineer who works to the country’s standards.

Nearby cities

Germany: all cities and regions

Sources

Preliminary calculation: a design needs an engineer’s check.